Makefile: add LDFLAGS_COMMON and LDFLAGS_STATIC

LDFLAGS_COMMON are used from two places, so it makes sense to dedup.

LDFLAGS_STATIC is a preparation for the next commit.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

Makefile

@@ -10,8 +10,10 @@ GIT_BRANCH_CLEAN := $(shell echo $(GIT_BRANCH) | sed -e "s/[^[:alnum:]]/-/g")
 RUNC_IMAGE := runc_dev$(if $(GIT_BRANCH_CLEAN),:$(GIT_BRANCH_CLEAN))
 PROJECT := github.com/opencontainers/runc
 BUILDTAGS ?= seccomp
+
 COMMIT ?= $(shell git describe --dirty --long --always)
 VERSION := $(shell cat ./VERSION)
+LDFLAGS_COMMON := -X main.gitCommit=$(COMMIT) -X main.version=$(VERSION)
 
 ifeq ($(shell $(GO) env GOOS),linux)
 	ifeq (,$(filter $(shell $(GO) env GOARCH),mips mipsle mips64 mips64le ppc64))
@@ -21,9 +23,11 @@ ifeq ($(shell $(GO) env GOOS),linux)
 	endif
 endif
 GO_BUILD := $(GO) build -trimpath $(GO_BUILDMODE) $(EXTRA_FLAGS) -tags "$(BUILDTAGS)" \
-	-ldflags "-X main.gitCommit=$(COMMIT) -X main.version=$(VERSION) $(EXTRA_LDFLAGS)"
+	-ldflags "$(LDFLAGS_COMMON) $(EXTRA_LDFLAGS)"
+
+LDFLAGS_STATIC := -extldflags -static
 GO_BUILD_STATIC := CGO_ENABLED=1 $(GO) build -trimpath $(EXTRA_FLAGS) -tags "$(BUILDTAGS) netgo osusergo" \
-	-ldflags "-extldflags -static -X main.gitCommit=$(COMMIT) -X main.version=$(VERSION) $(EXTRA_LDFLAGS)"
+	-ldflags "$(LDFLAGS_COMMON) $(LDFLAGS_STATIC) $(EXTRA_LDFLAGS)"
 
 GPG_KEYID ?= asarai@suse.de